Three grizzly bears died on northwest Montana highways last week. As bears search for food before bunking down for the winter, wildlife officials caution drivers to watch out for bears feasting on roadkill.

Sponges: These Aquatic Oddities Are At Home In Montana (Broadcast: "Field Notes," 09/13/15.)

Although many people associate these stone-like animals with the crystalline waters of the tropics, several species of sponges do occur in lakes and ponds across North America, including those of western Montana.

Researchers at the Flathead Lake Biological Station are studying how climate change may affect the lake’s chemistry and temperature. Corin Cates-Carney reports from a research presentation at the station Thursday night.

The bullet point is Flathead Lake is an extremely complex body of water; and it’s changing.

Flathead Lake is a good two feet below full pool following this particularly dry spring in northwest Montana. Northwestern Energy, which manages Kerr Dam, has notified tribal and federal agencies that water levels are low which could affect outflows this summer. Kerr produces power, regulates the lake's water levels and several reservoirs.